8440260340 has 96 divisors (see below), whose sum is σ = 18777225600. Its totient is φ = 3182000640.

The previous prime is 8440260331. The next prime is 8440260341. The reversal of 8440260340 is 430620448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8440260341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5371755 + ... + 5373325.

It is an arithmetic number, because the mean of its divisors is an integer number (195596100).

Almost surely, 2^8440260340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8440260340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9388612800).

8440260340 is an abundant number, since it is smaller than the sum of its proper divisors (10336965260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8440260340 is a wasteful number, since it uses less digits than its factorization.

8440260340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825 (or 1823 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 8440260340 is about 91870.8895134906. The cubic root of 8440260340 is about 2036.0351946266.

Adding to 8440260340 its reverse (430620448), we get a palindrome (8870880788).

The spelling of 8440260340 in words is "eight billion, four hundred forty million, two hundred sixty thousand, three hundred forty".